Steam-trap.



J. L. CRBVELING.

STEAM TRAP.

APPLIATION FILED MAY 28, 1908.

Patented Apr. 28, 1914.

Nil' III Z .m M 0. D n

WW1/Lewes:

COLUMBIA PLANoqlAPH Co.. WASHING UNITED STATES PATENT OFFICE.

JOI-IN L. CREVELING, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS,TO STANDARD HEAT AND VENTILATION COMPANY, INC., OF NEW YORK, N. Y., A

CORPORATIONv 0F NEW YORK- STE-AlT-TRAP.

To all 107mm it 12mg/ conce/ii Be it known that I, JOHN L. CREVELING, aresident of New York, in the county and State of New York, have inventeda certain new and useful Improvement in Steam- Traps, as set fort-h inthe following specification and drawing, forming a part thereof.

My invention pertains to that class of devices known as steam trapsdesigned to drain oii'. the water of condensation from steam pipesusually used in heating or steam transferring systems and has for itsparticular object to provide means whereby a certain part of the devicesnormally used in steam systems may be used in part to perform thisfunction as will hereinafter more clearly appear.

Referringto the drawing Figure I represents one form of my invention'inwhich a steam heat-ing device known as a acket is so designed as tofulfil its usual function and also that of a tra-p embodying myinvention. Fig. II represents a modification of the jacket and trapshown in Fig. I comprehending my invention.

In Fig. I (1) represents a casting or4 lie-ader into which are screwed apipe or tube (2) and a pipe 3 concentric therewith. Upon the maleportion of the header (1) is screwed the female member (t) into which isthreaded the pipe the otherend of which is screwed into the header orcasting (6) adapted to receive the gland (7) and make a tight jointbetween the pipe (3) and itself as by packing indicated at (8) which maybe drawn up as by nuts (9) upon the screw rods (10). The tube (2) issupported within the pipe (3) as by a plug (11) provided with aperforated flange (12) and the interior of the pipe (2) communicateswith the interior of pipe (3) through the openings (13). The screw rods(10) carry the yoke (14) adjustable thereon as by means of nuts (15) and(16). This yoke carries a screw (1T) with the expanded portion or may beadjusted as by means of the squaredI Specification of Letters Patent.

Application led May 28, 1908.

Patented Apr. 28, 1914. serial Nq. 435,378.

head (20) and can be held in position bv lock nut (21). u The header (1)is provided with a steam inlet port communicating with the interior ofpipe (2) and steam outlet ports communicating with the interior of pipe(3). The header (6) is provided with inlet ports communicating with theinterior of pipe (5) while the member (4;) .communicating with theinterior of pipe (5) 1s provided with outlet ports (2st).

In Fig. II the rods (10) carry the yoke (27) to which is attached theshell (26) which slips over the end of the pipe and is free to movethereon. The screw (17) carries the tiange (28) upon which is mounted anordinary expansion disk (29) the opposite face of which is provided witha seat (30) which may close against the pipe (3) so as to preventcommunication from the interior thereof to the atmosphere.

(31) represents an opening whereby any condensation coming from the pipe(3) may be drained away in any desired manner.

The expansion disk (29) may be made of a shell of light spring metal andpartly illed with some volatile liquid as indicated.

The operationof my improved steam trap is substantially as follows: Ifsteam be admitted through port (22) it will iiow through pipe (2)openings (13) into pipe and thence out through ports (23) thus heatingthe water or other circulating medium which may be arranged to enterthrough ports 25 and pass through pipe (5) and out through ports (24) ina well known manner. Now, if pipe (3) be made of a metal having agreater amount of expansion per unit of increase in temperature thanpipe (5) as for instance, if pipe (3) be made of brass and pipe made ofiron, by proper adjustment of the screw (17) the seat or disk 19) may bebrought in such relation The head end of the jacket should be so elerated above the trap that pipe may readily be kept tree trom water atall times. llt will be obvious that the circulating medium can be keptfrom leaking around pipe by proper adjustment ot the gland (T). The sameoperation will take pl ace in the .modiN fied form shown in Fig. ll savethat the ex pansion disk (29) can be made to cooperate with theexpansion pipe (i3) so as to aiiiord quite a wide opening between thepipe and the seat (30) which will be caused to close by the jointeilieet ot the expansion of the pipe (3) and ot the disk (29) due towhatever steam may escape into the inside ot the shell (Q6) so as toheat the said member (29).

l do not wish in any way to limit myself to any of the exactconstructions or details shown in the attached drawing which are meredia grammatic representations oit forms of devices embodying theessentials of my invention and it is quite obvious that wide departurein :term ot construction may bc taken without departing from the scopeof my invention.

Having thus described my invention what l consider novel and desire toprotect by Let ters Patent is as set 'forth in the 'following claims:

l. A trap comprehending a tube for conveying liquid; a second tubewithin the lirst tube whereby a heating medium in the seeond tube can beutilized to heat the liquid in the lirst tube and means cooperating withthe second tube so that the heating medium governs direct communicationof the second tube with the atmosphere; the trap having no communicationbetween the interior ot the tube for conveying the liquid and theinterior ot the second tube.

2. A combined jacket and trap comprebending tluid conducting meansadapted to contain a circulatory medium means within the same forimparting heat thereto; in combination with means whereby the expansionof said heat imparting means governs communication of the same with theatmosphere, the combined jacket and trap having no comniunicationbetween the fluid cond ucting means and the vheating means.

3. A steam trap comprisingl a steam conveying expansion member; fluidconducting means in operative relation thereto; and means wherebyexpansive action oit' the eX- pansion member governs the communican tionot the expansion member with the atmos} )here, there being` no directcommunication between the steam conveying member and the fluidconducting means.

el.. A combined jacket and trap comprising an outer tube adapted tocontain a circulan ing medium; a tube within the same adapted to conveysteam in operative relation to and separated from the circulatingmedium;

neonates and mer-ns whereby expansion ot' the steam conveying tubocontrols the drainage ot the same.

53. il steam trap comprehend ing a conduit adapted to Carr'.v steamunder pressure; coinbiued with means whereby Vwater of comlen sation isdischarged trom said conduit; means tor utilizing heat ot said stean'iwhile in transit through said conduit, comprising means tor conducting acirculating medium inoperative relation to said conduit; and means forcontrolling communication of the conduit with the atmosphere.

6. il steam trap eomprehending a tube for conveying liquid; a secondtube; concentric with tne lirst tube, tor conveying steam whereby thesteam can be utilized to heat the liquid within the tube; and means,comprising an expansible thermostatic mein' ber, cooperating with thesecond tube whereby thc condensation trom the steam can be dischargedirom the second tube, dependent upon the thermostatie conditions withinsaid second tube, without permitting iiow from the opening controlled bysaid exoansiblc thermostatic means to the interior ot said tube :torconveying the liquid.

7. il combined jacket and trap compreliending fluid conducting meansadapted to contain a. circulatory medium; means in operative relationthereto for imparting heat to a circulatory medium; combined with valvemeans constructed so that the eipann sion ol? said heat imparting meansgoverns the drainage of the same.

8. il steam trap comprising an expansion member adapted to convey steam;fluid conducting' means in operative relation thereto but not incommunication therewith; and means whereby expansive action of theexpansion member governs the drainage of the same.

9. A steam trap comprising an expansion member adapted to convey steam;fluid conducting means in operative relation thereto but not incommunication therewith; means ".vhereby expansive action et theexpansion member tends to govern the drainage ot the same; and a.supplemental expansion member cooperating therewith.

l0. ivlcans 'for utilizing energy derived trom a heated tluid comprising.means :tor conveying said fluid; means for conveying another tluio inoperative relation to but not communieatin.O` with the irst named fluid;and means whereby the expansion of the means for conveying thelirstnamed 'fluid controls the drainage ot said tluid conveying means.

ll. ln combination, a jacket for conducting tiuid to be heated; meansfor heating the tluid including an expansion element; and valve meansconstructed so that the expan sion ot said element will control thedrainage thereof and its communication with the l duit With theatmosphere, there being no atmosphere Without permitting aniT flow, gcommunication between the jacket and the 10 through the drainageopening, from the heating mea-ns through the opening leading jacket tothe heating means oi' vice versa. from the conduit to the atmosphere.

1Q. In combination, a jacket for conduct- JOHN L. CREVELING.

ing iiuid to be heated; means for heating the Witnesses: iiuid includinga duplex conduit; and means C. J. STOOKLEY, for controllingcommunication of Said con- E. E. ALLBEE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

